From patchwork Mon Jun 21 09:46:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: thermal-bot for Lad Prabhakar X-Patchwork-Id: 464817 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-20.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E7C21C49361 for ; Mon, 21 Jun 2021 09:47:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C3BCA60FF4 for ; Mon, 21 Jun 2021 09:47:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230332AbhFUJtN (ORCPT ); Mon, 21 Jun 2021 05:49:13 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:43238 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230500AbhFUJs7 (ORCPT ); Mon, 21 Jun 2021 05:48:59 -0400 Date: Mon, 21 Jun 2021 09:46:43 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1624268804; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zOU+tdixvEvWkf6SpfISMHP2u4tcmioJxIiqhlZVuEU=; b=CDPsFoKGt5iG/8+fwgyxWn8jPsYGtwiN2fRFXTpdKKTLSDBwqHM6FqhdijU5vzeGRlpKfO VHbmeHDC0JY0uvQuSbUxBCi3Hgs/GorAE4ByMtcyPhHqNQrIryQw1mdKYZddv5+AvlSwpS 4vfJfADh+MRpiipxWXdVPMS8/l8gItrWHtKLltBDl39/1xepQKsbmmYRXlv0uASoqe30Sp swyzoBtA5+RaJ3EMQZAz9L3IwMzc89sZfAboOzYGWHhAysT8ak18evN3wlG0zLVs7DUGpM s2s9Ce78QBkTwhlbq92O6ASht7+JcfHAFAhZkN5yCsvbhMhp/sH4/NZxpRTC4w== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1624268804; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zOU+tdixvEvWkf6SpfISMHP2u4tcmioJxIiqhlZVuEU=; b=1w9yJ5NOcVlvE8zMp3z9ycL+rbh4rkB0Bq8YhcG/v4LhVayEzT2QyB7nVbuHIHBo2zDc47 0Yx7XmHaxDneVABg== From: "thermal-bot for Dmitry Osipenko" Sender: tip-bot2@linutronix.de Reply-to: linux-pm@vger.kernel.org To: linux-pm@vger.kernel.org Subject: [thermal: thermal/next] dt-bindings: thermal: Add binding for Tegra30 thermal sensor Cc: Rob Herring , Dmitry Osipenko , Daniel Lezcano , rui.zhang@intel.com, amitk@kernel.org In-Reply-To: <20210616190417.32214-2-digetx@gmail.com> References: <20210616190417.32214-2-digetx@gmail.com> MIME-Version: 1.0 Message-ID: <162426880365.395.10578901827528266115.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The following commit has been merged into the thermal/next branch of thermal: Commit-ID: 6380829885ccf8a5ec556ef2b3bb69f5961f9dde Gitweb: https://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux.git//6380829885ccf8a5ec556ef2b3bb69f5961f9dde Author: Dmitry Osipenko AuthorDate: Wed, 16 Jun 2021 22:04:12 +03:00 Committer: Daniel Lezcano CommitterDate: Fri, 18 Jun 2021 12:38:33 +02:00 dt-bindings: thermal: Add binding for Tegra30 thermal sensor All NVIDIA Tegra30 SoCs have on-chip sensors which monitor temperature and voltage of the SoC. Sensors also controls CPU x2 freq throttle and emits emergency shutdown signal. TSENSOR has has two separate channels for each sensor placed in a different parts of the SoC. Add binding for the sensor hardware. Reviewed-by: Rob Herring Signed-off-by: Dmitry Osipenko Signed-off-by: Daniel Lezcano Link: https://lore.kernel.org/r/20210616190417.32214-2-digetx@gmail.com --- Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml | 73 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml diff --git a/Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml b/Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml new file mode 100644 index 0000000..a35da25 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/nvidia,tegra30-tsensor.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Tegra30 Thermal Sensor + +maintainers: + - Dmitry Osipenko + - Jon Hunter + - Thierry Reding + +description: | + TSENSOR provides thermal and voltage sensors which monitor temperature + and voltage of the chip. Sensors are placed across the die to gauge the + temperature of the whole chip. The TSENSOR module: + + Generates an interrupt to SW to lower temperature via DVFS on reaching + a certain thermal/voltage threshold. + + Generates a signal to the CAR to reduce CPU frequency by half on reaching + a certain thermal/voltage threshold. + + Generates a signal to the PMC when the temperature reaches dangerously high + levels to reset the chip and sets a flag in the PMC. + + TSENSOR has two channels which monitor two different spots of the SoC. + +properties: + compatible: + const: nvidia,tegra30-tsensor + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + + interrupts: + maxItems: 1 + + "#thermal-sensor-cells": + const: 1 + + assigned-clock-parents: true + assigned-clock-rates: true + assigned-clocks: true + +required: + - compatible + - reg + - clocks + - resets + - interrupts + - "#thermal-sensor-cells" + +additionalProperties: false + +examples: + - | + thermal-sensor@70014000 { + compatible = "nvidia,tegra30-tsensor"; + reg = <0x70014000 0x500>; + interrupts = <0 102 4>; + clocks = <&clk 100>; + resets = <&rst 100>; + + #thermal-sensor-cells = <1>; + };